Rail-drill



(No Model.)

J. DOYLE & J. WILLIAMSON. RAIL DRILL.

Patented May 7, 1889 I 111 JEWL'UTS L311?! Dayle 1mm wilhmgm BWit-messes: fWZ/MM .XWW

UNITED STATES PATENT OFFICE.

JOHN DOYLE AND JOHN VILLIAMSON, OF IONIA, MICHIGAN.

RAIL-DRILL.

SPECIFICATION forming part of Letters Patent No. 403,040, dated May 7,1889.

Application filed February 2, 1889. Serial No. 298,421. (No model.)

To all whom it may concern.-

Be itknown that We, JOHN DOYLE and JOHN WILLIAMSON, citizens of theUnited States, residing at Ionia, in the county of Ionia and State ofMichigan, have invented certain new and useful Improvements inRail-Drills, of which the following is a specification, reference beinghad therein to the accompanying drawings.

This invention relates to new and useful improvements in rail-drills;and the invention consists in the peculiar construction of the railclamp or holder, whereby rails laid on the track may be convenientlydrilled at any place without removing or changing the position of therails, all as more fully hereinafter described, and shown in theaccompanying drawings, in which- Figure 1 shows a perspective view ofthe rail-clamp, and Fig. 2 a cross-section of the same as arranged foroperation with a ratchetdrill.

A is the shank of the stationary part of the clamp, provided at one endwith the jaw B, adapted to embrace one side of the foot of the rail andterminating in the upwardly-extending lip 0, provided with the centralnotch, D, the lip being adapted to fit against the web of the rail.

E is a rail-shackle slidingly embracing the bar A and provided with thetongue F, adapted to embrace the opposite portion of the foot of a railplaced between it and the shackle B, as shown in Fig. 2.

G is a feed-screw threaded through the upturned end H of the bar A, andthis feed-screw is provided with a suitable lever, I, loosely secured ina diametrical hole through the head of the feed-screw.

In practice, if a rail on the track is to be drilled through at anydesired place, the earth underneath the rail is sufficiently removed toadmit of the jaw B of the clamp being pushed underneath the rail andengaged with the op posite side of the foot of the rail, as shown inFig. 2. The sliding shackle is then pushed against the opposite side ofthe rail until the same is firmly embraced. By placing the ratchet-drillbetween the point of the rail to be drilled and centering it on thefeed-screw, it may be operated in the usual manner for drilling holes bygradually feeding the drillstock with the feed-screw.

It will be seen that great power can be brought to feed the drillWithout any possibility of displacing the parts, and if the lip C on thejaw bears against the web of the flange on both sides of the directionin which the drill is working no lateral movement of the clamp can takeplace while the drill is worked.

By providing the lip with the central notch, D, a clean hole can bebored through the Web without any danger of injury to the drill.

Our device is easily portable, so that one man can without difficultycarry it to any place on the track and operate it with the greatestfacility, and the advantages of our device as a handy and ready tool forthe purpose for which it is designed will readily be acknowledged.

\Vhat we claim as'our invention is- 1. In a rail-drill, a rail-clampconsisting of the stationary j aw provided with the laterallyextendingshank and with the upwardlynotched lip fitting against the web of therail, the movable jaw slidingly secured 011 the lateral shank, and thefeed-screw on the end of the shank, the parts being constructed tooperate in connection with a ratchet-drill, substantially as described.

2. In a rail-drill, a rail-clamp consisting of the stationary jaw B,plJVlClGCl with the laterally-extending shank A and with theupwardly-extending notched lip 0, parallel with and fitting against theweb of the rail, the movable jaw E, slidingly embracing the shank A andprovided with the tongue F and the feed-screw G, carried in the upturnedend of the shank, substantially as described.

In testimony whereof we affix our signatures, in presence of twowitnesses, this 13th day of December, 1888.

JOHN DOYLE. JOHN WILLIAMSON.

Witnesses:

BENJAMIN F. CALVIN, WILLIAM K. CHRISTIE.

